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Small screenAt the Society for Information Display conference taking place in San Francisco this week, researchers from Philips, Liquavista, Samsung and others are gathering to discuss the latest display trends coming out of their labs.
This small screen--about 2 inches by 2 inches--from Liquavista can display clock faces, videos and games and can show things in gray scale or color. The screens consume far less power than standard LCDs, according to CEO Mark Gostick. The Royal Philips Electronics spinoff will first sell its technology to the watch industry. "There is no intrinsic barrier to size. In five years, you could see this in notebooks," he said.
Liquavista screens rely on electrowetting. Each pixel contains water and a droplet of dyed oil. When an electric charge is applied to the outside surface of the pixel, it becomes hydrophilic. The water is attracted to the surface, forcing the oil to the side and making the pixel take on the color of the lower surface of the pixel, which is white in this case. When the charge is reversed and the surface becomes hydrophobic, the pixel takes on the color of the dyed oil.